Vertical handle with comfortable grip ensures wrists are in the correct position for pushing and steering Shelves are located within a "Safety Zone" that is the proper height for loading and unloading, bottom shelf is 20" (508) from the floor No-mark , extra load, cushion tread wheels absorb impact, reducing vibration and strain 18-gauge stainless steel shelves reinforced for added strength All-welded construction for a stronger structure and easier-to-clean surface Stainless steel is easy to clean and sanitize Leg bumpers protect walls and furniture NSF listed